# Bumpy black holes in alternative theories of gravity

@article{Vigeland2011BumpyBH, title={Bumpy black holes in alternative theories of gravity}, author={S. Vigeland and Nicol'as Yunes and L. Stein}, journal={Physical Review D}, year={2011}, volume={83}, pages={104027} }

We generalize the bumpy black hole framework to allow for alternative theory deformations. We construct two model-independent parametric deviations from the Kerr metric: one built from a generalization of the quasi-Kerr and bumpy metrics and one built directly from perturbations of the Kerr spacetime in Lewis-Papapetrou form. We find the conditions that these 'bumps' must satisfy for there to exist an approximate second-order Killing tensor so that the perturbed spacetime still possesses three… CONTINUE READING

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